How Long Should a Well Pump Last? (typical jet pump) 5-10 years 50% 15-20 years 50% Next Question Question: How Long Should a Well Pump Last? (typical jet pump) Top Answer (50% of 2 votes): 5-10 years. Next Question Find Local Pros Free Well Pump Installation Cost Estimates Related Questions How Much Does Well Pump Replacement Cost? How Much to Have a Well Pump Installed? What is a shallow well pump? What is a deep well pump? What is a well pump? Related Topics Well Pump Installation